Chemistry Unit 2 Study Guide

Chemical change
Change that produces matter with a different composition than the original matter

Chemical property
Ability of a substance to undergo a specific chemical change

Chemical reaction
One or more substances change into one or more new substances

Chemical symbol
Representation of an element

Substance that contains two or more elements chemically combined in a fixed proportion

A liquid is boiled to produce a vapor that is then condensed into a liquid

Simplest form of matter that has a unique set of properties

Extensive property
Property that depends on the amount of matter in a sample

Process that separates a solid from the liquid in a heterogenous mixture

A form of matter that takes both the shape and volume of its container

Heterogenous mixture
A mixture in which the composition is not uniform throughout

Homogeneous mixture
A mixture in which the composition is uniform throughout

Intensive property
A property that depends on the type of matter

Law of conservation of mass
In any physical change or chemical change, mass is conserved

A form of matter that has an indefinite shape, flows, yet has a fixed volume

Amount of matter contained

Physical blend of two or more compounds

Part of sample with uniform composition

Physical change
Quality or condition of a substance that can be observed or measured without changing the substance’s composition

Physical property
Quality or condition of a substance that can be observed or measured without changing the composition

A solid that forms and settles out of a liquid mixture

Substance present at finish of chemical reaction

Substance present at the start of a chemical reaction

A form of matter than has definite shape and volume

Homogenous mixture

Matter that has a uniform and definite composition

The gaseous state of a substance that is generally a liquid or solid at room temperature, water vapor

Measure of space occupied

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